[Paper Review] Fine structure of histograms of alpha-activity measurements depends on direction of alpha particles flow and the Earth rotation: experiments with collimators

S. E. Shnoll, K. I. Zenchenko+3 more|ArXiv.org|Dec 1, 2004

Radioactive Decay and Measurement Techniques6 references15 citations

TL;DR

This study investigates how the fine structure of alpha-activity measurement histograms from 239Pu depends on the direction of alpha particle flow and Earth's rotation. Using collimators to restrict particle flow toward the Polar Star, the researchers found that periodic variations with a 1436-minute (sidereal day) period vanish, suggesting a link between statistical distribution fine structure and celestial reference frames.

ABSTRACT

The fine structure of histograms of measurements of 239Pu alpha-activity varies periodically, and the period of these variations is equal to sidereal day (1436 minutes). The periodicity is not observed in the experiments with collimator that restricts the alpha particles flow to be oriented to the Polar Star. Based on this study and other independent data, such as measurements conducted by the Arctic expedition, and similarity of the histograms in processes observed at different locations at the same local time, the conclusion was made, that the fine structure of statistical distributions of the observed processes depends on the celestial sphere.

Motivation & Objective

• To investigate whether the fine structure in histograms of 239Pu alpha-activity measurements is influenced by the direction of alpha particle flow.
• To determine if variations in these histograms correlate with Earth's rotation, particularly over a sidereal day period.
• To test whether the observed periodicity is affected by directional shielding using collimators.
• To explore the hypothesis that statistical distributions of physical processes are influenced by celestial sphere orientation.
• To assess consistency of histogram patterns across different geographic locations at the same local time.

Proposed method

• Measurements of 239Pu alpha-activity were conducted over extended periods to generate statistical histograms.
• A collimator was used to restrict alpha particle flow to a specific direction, specifically toward the Polar Star.
• Histograms were analyzed for periodic fine structure using time-series analysis techniques.
• The experiment compared data with and without collimation to isolate directional effects.
• The sidereal day (1436 minutes) was used as a reference period to test for periodic modulation.
• Independent data from Arctic expeditions were compared to validate the observed patterns.

Experimental results

Research questions

• RQ1 Does the fine structure in alpha-activity measurement histograms vary periodically with a 1436-minute cycle?
• RQ2 Is the observed periodicity dependent on the direction of alpha particle flow?
• RQ3 Does collimating the alpha particles toward the Polar Star eliminate the periodic fine structure in the histograms?
• RQ4 Are the statistical patterns of alpha decay consistent across different geographic locations when measured at the same local time?
• RQ5 Could the fine structure of statistical distributions be influenced by the orientation relative to the celestial sphere?

Key findings

• The fine structure of alpha-activity measurement histograms exhibited periodic variations with a period of 1436 minutes, corresponding to a sidereal day.
• When the alpha particle flow was restricted to the direction of the Polar Star using a collimator, the periodic fine structure disappeared.
• The absence of periodicity under collimated conditions suggests that directional sensitivity to Earth's rotation is a key factor in the observed pattern.
• Consistent histogram shapes were observed across different locations when measurements were taken at the same local time, supporting a celestial reference frame influence.
• The results align with independent Arctic expedition data, reinforcing the hypothesis of a celestial sphere-dependent statistical structure in physical processes.